Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"quan tinh trac slippers" » "quan binh trac slippers", "quang ninh trac slippers", "quang binh trac slippers", "quan sinh trac slippers", "quan tinh trang slippers", "quan tinh toan slippers", "quan tinh trac slippery", "quan tinh trac grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung java java snippets") or ("quan tinh trac slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("quan tinh trac slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( quan tinh trac slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("quan tinh trac slippers"))) or ("locating bug code snippets"))*.